Release notes header 2.15.0

[fabriziomello]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 81.00%. Comparing base (59f50f2) to head (62c69b6).
Report is 141 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #6874      +/-   ##
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+ Coverage   80.06%   81.00%   +0.93%     
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  Files         190      198       +8     
  Lines       37181    37286     +105     
  Branches     9450     9734     +284     
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+ Hits        29770    30204     +434     
- Misses       2997     3188     +191     
+ Partials     4414     3894     -520     

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[fabriziomello]

List of current PRs:

Features

• Support for CAgg with time_bucket origin/offset parameter #6382 Support for time_bucket with origin and offset in CAggs
• Make compression use the defaults functions #6696 Improve defaults for compression segment_by and order_by
• Add minmax sparse indexes when compressing columns with btree indexes #6705 Add sparse minmax indexes for compressed columns that have uncompressed btree indexes
• Allow DROP CONSTRAINT on compressed hypertables #6754 Allow DROP CONSTRAINT on compressed hypertables
• Track job execution history #6767 Add metadata table _timestaledb_internal.bgw_job_stat_history for tracking job execution history
• Prevent usage of time_bucket_ng in CAgg definition #6798 Prevent usage of deprecated time_bucket_ng in CAgg definition
• Add telemetry for access methods #6810 Add telemetry for access methods
• Remove allow_install_without_preload GUC #6811 Remove no longer relevant timescaledb.allow_install_without_preload GUC
• Add migration for CAggs using time_bucket_ng #6837 Add migration path for CAggs using time_bucket_ng
• Update the watermark when truncating a CAgg #6865 Update the watermark when truncating a CAgg

Bugfixes

• Fix error in show_chunks #6617 Fix error in show_chunks
• Remove metadata when dropping chunk #6621 Remove metadata when dropping chunks
• Fix snapshot usage in CAgg invalidation scanner #6677 Fix snapshot usage in CAgg invalidation scanner
• Define meaning of 0 retries for jobs as no retries #6698 Define meaning of 0 retries for jobs as no retries
• Fix handling of compressed tables in COPY path #6717 Fix handling of compressed tables with primary or unique index in COPY path
• Fix constify cagg_watermark using window functions #6726 Fix constify cagg_watermark using window function when querying a CAgg
• Fix NULL start value handling in CAgg refresh #6729 Fix NULL start value handling in CAgg refresh
• Fix CAgg migration with custom settings #6732 Fix CAgg migration with custom timezone / date format settings
• Remove autovacuum setting from compressed chunks #6752 Remove custom autovacuum setting from compressed chunks
• Fix plantime chunk exclusion for OSM chunk #6770 Fix plantime chunk exclusion for OSM chunk
• Fix deletes with subqueries and compression #6789 Fix deletes with subqueries and compression
• Fix a crash involving a view on a hypertable #6796 Fix a crash involving a view on a hypertable
• Fix FK constraints for compressed chunks #6797 Fix foreign key constraint handling on compressed hypertables
• Fix handling of chunks with no dimension slices #6816 Fix handling of chunks with no contraints
• Check for trigger context before accessing data #6820 Fix a crash when the ts_hypertable_insert_blocker was called directly
• Use non-orderby compressed metadata in compressed DML #6849 Use non-orderby compressed metadata in compressed DML
• Clean up compression settings when deleting compressed cagg #6867 Clean up compression settings when deleting compressed cagg
• Fix compressed DML with constraints of form value OP column #6869 Fix compressed DML with constraints of form value OP column
• Fix bool expression pushdown for queries on compressed chunks #6870 Fix bool expression pushdown for queries on compressed chunks

Thanks

• @brasic for reporting a crash when the ts_hypertable_insert_blocker was called directly
• @bvanelli for reporting an issue with the jobs retry count
• @djzurawsk For reporting error when dropping chunks
• @Dzuzepppe for reporting an issue with DELETEs using subquery on compressed chunk working incorrectly.
• @hongquan For reporting a 'timestamp out of range' error during CAgg migrations
• @kevcenteno for reporting an issue with the show_chunks API showing incorrect output when 'created_before/created_after' was used with time-partitioned columns.
• @mahipv For starting working on the job history PR
• @rovo89 For reporting constify cagg_watermark not working using window function when querying a CAgg

[fabriziomello]

@iroussos should we add deprecation warning for PG13???